Answer:
MMXIV
Step-by-step explanation:
You know, if you check your calculator, it has a [ ₙPᵣ ] and also an [ ₙCᵣ ] button, and you could use that, now, if you want the factorial version,
The purple line is showing / represents exponential growth
The answer would probably 3 because there is 1 x and y plus a 10